Switch-fuse unit provided with a control block to activate auxiliary circuits

• US 5,772,011 A
• Filed: 10/01/1996
• Issued: 06/30/1998
• Est. Priority Date: 10/03/1995
• Status: Expired due to Fees

• Current Assignee: Socomec S A (Socomec Holding)
• Original Assignee: Socomec S A (Socomec Holding)
• Inventors: Dumont, Roger
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Vortman, Anatoly
• Application Number:
  US08/725,185
• Time in Patent Office: 637 Days
• Field of Search: 200/1, 200/2, 200/3, 200/4, 200/14, 200/15, 200/27 R, 200/28, 200/29, 200/30 R, 200/31 R, 200/31 A, 200/36, 200/37 R, 200/37 A, 200/38 B, 200/38 BA, 200/38 C, 200/43.04 , 200/43.14, 200/43.15, 200/116, 200/50.07, 200/50.11, 200/400, 200/436, 200/437, 200/17 R, 200/18, 200/50.01, 200/50.32, 200/50.37, 200/50.4, 337/10, 337/7, 337/8, 337/11, 337/52, 337/63, 337/64, 337/65, 218/1, 218/2, 218/7, 218/14, 218/152, 218/153, 218/154, 218/8
• US Class Current: 200/573
• CPC Class Codes: H01H 19/63 Contacts actuated by axial cams H01H19/6355 takes precedence
• CPC Class Codes: H01H 9/0066 Auxiliary contact devices for arc transfer H01H9/38; for electromagnetic relays H01H50/541
• CPC Class Codes: H01H 9/102 Fuses mounted on or constituting the movable contact parts of the switch
• CPC Class Codes: H01H 9/104 with interlocking mechanism between switch and fuse

Abstract

The present invention relates to a switch-fuse unit provided with a control block to activate auxiliary circuits, this control block being provided with a rotating shaft fitted with a handle for selecting the unit'"'"'s functions. This unit comprises an accessory device (10) mounted on the control block (11) and is provided with at least one microswitch (13) associated with an auxiliary circuit and a rotating part (18) mounted on said rotation shaft, this part being fitted with at least one activation cam (17). Each microswitch (13) comprises a mobile actuator (14) controlled by a plunger (15) via a support (12), this plunger (15) itself being controlled by the activation cam (17) associated with it, when the rotating part is moving. This accessory device (10) is particularly compact, easy to access and use and is suitable for all switching logics.

Claims

1. Switch-fuse unit (1) provided with a control block (11) to activate auxiliary circuits, this control block being provided with a rotating shaft fitted with a handle for selecting the unit'"'"'s functions, characterised in that it comprises an accessory device (10) mounted on the control block (11) and combined with said rotating shaft, this accessory device having a support (12) provided with at least one receptacle (16) designed to house at least one plunger (15) designed to cooperate with a mobile actuator (14) of at least one microswitch (13) associated with an auxiliary circuit and being provided with a rotating part (18) mounted on said rotating shaft, this part being fitted with at least one activation cam (17) designed to activate the said plunger (15).

2. Unit according to claim 1, wherein the support (12) is provided with several receptacles (16) and two plungers (15), housed in two adjacent receptacles, are associated with the same mobile actuator (14) of a microswitch.

3. Unit according to claim 1, wherein the rotating part (18) comprises several activation cams (17) arranged in concentric circles.

4. Unit according to claim 3, wherein the rotating part (18) comprises a disk (18a) bearing the activation cams (17), and a cylindrical drum (18b) which said rotating shaft crosses through.

5. Unit according to claim 4, wherein said cylindrical drum has a cross bore (19) with a square section the dimensions of which match those of the section of said rotating shaft.

6. Unit according to claim 3, wherein each activation cam (17) corresponds to a plunger (15).

7. Unit according to claim 1, wherein it comprises a plate for padlocking (20) said rotating shaft.

8. Unit according to claim 7, wherein the padlocking plate (20) is placed between the rotating part (18) and the control block (11).

9. Unit according to claim 8, wherein the padlocking plate (20) has an opening (21) which said rotating shaft crosses through, this opening having a circular shaped part (21a) allowing the shaft to rotate freely and an elongated part (21b) with a square or rectangular section which locks this shaft.

10. Unit according to claim 7, wherein the padlocking plate (20) slides between a first position corresponding to the free rotation of the rotating shaft and a second position which corresponds to the locking of the shaft.